package br.edu.curso.java.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;

import br.edu.curso.java.VO.UsuarioVO;
import sun.misc.Regexp;

/**
 * Servlet Filter implementation class LoginFilter
 */
@WebFilter("*")
public class LoginFilter implements Filter {

    /**
     * Default constructor. 
     */
    public LoginFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		// place your code here

		// pass the request along the filter chain
		
		HttpServletRequest req  = (HttpServletRequest) request;
		
		String url = req.getRequestURL().toString();
		
		if (url.contains("Menu.html") || url.contains("LoginServlet") || url.contains("Login.jsp") || url.endsWith(".css")  || url.endsWith(".js")   ) {
			chain.doFilter(request, response);	
		} else {
			UsuarioVO usuarioLogado = (UsuarioVO) req.getSession().getAttribute("UsuarioLogado");
			
			if (usuarioLogado == null ) {
				RequestDispatcher rd = req.getRequestDispatcher("Login.jsp");
				rd.forward(request, response);
			} else {
				chain.doFilter(request, response);	
			}
			
		}

			
}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
